I've only had the car for a few weeks. It was working normally until I was investigating what all the buttons were for. I pressed the 'W' button and drove the car. I immediately noticed the difference and realised the 'W' was for winter mode. However when I pressed the button again to move back to standard it didn't change back. I don't know if the gearbox has been serviced. Ther car has only done 80K miles.
It was a decent guess but it didn't pan out. However I strongly object to receiving 22 emails over a few days demanding a rating. What you should realise is that some people have other commitments and cannot check these things out immediately.